Identification of Bioactivating Enzymes Involved in the Hydrolysis of Laninamivir Octanoate, a Long-Acting Neuraminidase Inhibitor, in Human Pulmonary Tissue

Laninamivir octanoate (LO) is an octanoyl ester prodrug of the neuraminidase inhibitor laninamivir. After inhaled administration, LO exhibits clinical efficacy for both treatment and prophylaxis of influenza virus infection, resulting from hydrolytic bioactivation into its pharmacologically active metabolite laninamivir in the pulmonary tissue. In this study, we focused on the identification of LO-hydrolyzing enzymes from human pulmonary tissue...